Data is download from https://data.worldbank.org/indicator/IT.NET.USER.ZS by Yujia Wang on Nov 27, 2020. 

According to https://data.worldbank.org/summary-terms-of-use, accessed by Bilal Memon on Nov 12, 2021: You must include attribution for the data you use in the manner indicated in the metadata included with the data. Generally, you agree to provide attribution to The World Bank and its data providers in the following format: The World Bank: Dataset name: Data source (if known).